Total Trihalomethanes (TTHM)
Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).
3 TRI facilities inside the city limits and 9 public water systems serving residents. In-city TRI releases more than halved year over year (-89%). Toxic releases concentrations are up 92% since 2010.
FIPS 4875476 · population 9,806 · Orange County
Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).
Unresolved Total Trihalomethanes Rule violation cited in 2025 (total trihalomethanes (tthm)).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2020 (contaminant 5000).
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Showing the 4 most editorially weighted signals out of 8. Lower-severity signals fold into the chemical breakdown and history charts below.
PM2.5 annual mean (NAAQS 9 µg/m³ (annual)) concentrations have fallen 35% since 2010.
PM2.5 24-hour 98th percentile (NAAQS 35 µg/m³ (24-hour)) concentrations have more than halved since 2010.
Ozone 8-hour 4th-highest daily max (NAAQS 0.070 ppm (8-hour)) concentrations have fallen 20% since 2010.
NO₂ annual mean (NAAQS 53 ppb (annual)) concentrations have more than halved since 2010.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
Single-vintage exposure modeling — EPA cadence is multi-year, so no trend line yet.
TRI air releases (5.1 fugitive + 5.2 stack) concentrations have more than halved since 2010.
TRI water releases (5.3) volumes here are too small to anchor a multi-year trend; YoY movement is still shown above.
TRI land + off-site releases concentrations have more than doubled since 2010.
Greenhouse gases (GHGRP large emitters, through 2023) concentrations have fallen 20% since 2010.
| Facility | Top chemical | Total releases | YoY |
|---|---|---|---|
| Optimus Steel LLCOptimus Steel LLC | Manganese compoundsHealth riskExcess inhalation can cause manganism, a Parkinson-like neurological disorder. (ATSDR) | 51k lb | -90% |
| Jefferson Railport TerminalJefferson Gulf Coast Management Partners LLC | n-HexaneHealth riskPeripheral neurotoxin. Chronic exposure causes numbness and paralysis in the extremities. (ATSDR) | 3k lb | -44% |
| Tms International LLCTms International CORP | Manganese And Manganese CompoundsHealth riskExcess inhalation can cause manganism, a Parkinson-like neurological disorder. (ATSDR) | 7 lb | -4% |
266 unresolved violations on the SDWIS record across utilities serving this city.
Utilities serving
Population served
Health-based · 5yr
Unresolved
| Water system | PWSID | Population served | Health-based · 5yr | Status |
|---|---|---|---|---|
| City Of Rose City Municipal | TX1810139 | 664 | 273 | UNRESOLVED |
| Orange County Wcid 1 Municipal | TX1810005 | 15,258 | 77 | UNRESOLVED |
| Sawmill Addition Private | TX1810034 | 64 | 18 | UNRESOLVED |
| Evergreen Park Hickory Hills Water Syste Private | TX1810117 | 363 | 0 | UNRESOLVED |
| Capri And Gall Streets Private | TX1810178 | 65 | 0 | UNRESOLVED |
Showing the 5 systems with recorded health-based or unresolved violations. 4 additional systems are in compliance with no recorded health-based violations in the past 5 years and are not individually tabulated.
A public water systemis the regulated entity, not the city. EPA's SDWIS definition covers anything serving 25+ people for 60+ days a year or with 15+ service connections — that includes municipal utilities (City of Stockton), water districts, mobile home parks operating their own wells, schools, and small private subdivisions. Each system is independently monitored. Some systems serve multiple cities; some cities are served by many systems.
Vidor, Texas (Census place block groups): 9,806 residents. City disparity score for pm2.5 (fine particulate) sits below the reference (64). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 64 | below the reference |
| Ozone | 14 | well below the reference |
| Nitrogen dioxide (NO₂) | 29 | well below the reference |
| Diesel particulate | 52 | below the reference |
| Toxic releases (RSEI) | 89 | below the reference |
| Traffic proximity | 33 | well below the reference |
| Lead-paint risk (pre-1960 housing) | 34 | well below the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 62 | below the reference |
| Hazardous-waste site proximity | 33 | well below the reference |
| Underground storage tanks | 65 | below the reference |
| NPDES wastewater proximity | 38 | well below the reference |
| Drinking-water non-compliance | 89 | below the reference |
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).
Modeled adult-prevalence estimates published by CDC PLACES, paired with this city's pollution and demographic context. Comparisons are ecological, not causal — pollution and disease prevalence covary at the area level, but the data does not attribute any individual's diagnosis to local exposure. How this section works →
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
CDC PLACES · 2025 release · BRFSS 2022-2023
PLACES uses BRFSS-modeled small-area estimates, not individual records. Crude prevalence shown above is the local rate as published; comparators are age-adjusted vs the Texas mean and the US mean — both population-weighted across counties — so geographies with different age structures stay apples-to-apples. Sources: CDC PLACES · 2025 release · BRFSS 2022-2023.
Sources.